EP0143240B1 - Dispositif d'encrage pour machines à imprimer - Google Patents

Dispositif d'encrage pour machines à imprimer Download PDF

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Publication number
EP0143240B1
EP0143240B1 EP84111165A EP84111165A EP0143240B1 EP 0143240 B1 EP0143240 B1 EP 0143240B1 EP 84111165 A EP84111165 A EP 84111165A EP 84111165 A EP84111165 A EP 84111165A EP 0143240 B1 EP0143240 B1 EP 0143240B1
Authority
EP
European Patent Office
Prior art keywords
roller
ink
bushings
inking unit
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84111165A
Other languages
German (de)
English (en)
Other versions
EP0143240A1 (fr
Inventor
Rudi Junghans
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT84111165T priority Critical patent/ATE25355T1/de
Publication of EP0143240A1 publication Critical patent/EP0143240A1/fr
Application granted granted Critical
Publication of EP0143240B1 publication Critical patent/EP0143240B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/38—Means for axially reciprocating inking rollers

Definitions

  • the innovation relates to an inking unit for printing presses according to the preamble of claim 1.
  • DE-C 30 34 644 shows an inking unit in which four application rollers are driven by the associated friction rollers via spur gears and execute an axial movement via a drum curve arranged on the axis of the application rollers.
  • the wheat axis driven via the spur gear is to receive a differential speed from the application roller speed.
  • a single inking roller is implemented in an oscillating manner, which, viewed in the direction of rotation of the plate cylinder, is the last inking roller.
  • the purpose of the described design is to improve the stenciling behavior of an inking unit.
  • the object of the present invention is to improve an inking unit in a simple manner so that stenciling phenomena on the printing plate or the printed image are avoided if the plate cylinder is colored evenly.
  • the object is achieved by the features listed in the characterizing part of claim 1.
  • the differences in thickness of the ink film on the last inking roller that occur during stenciling are shifted so far compared to the other inking rollers by their axial movement that there are no longer any sharp contours and thus a stenciling effect on the finished printed image is no longer visible.
  • the side view shown in FIG. 1 is a normal offset printing unit for printing on a paper web 1 between two rubber cylinders 2, 3, which each interact with a plate cylinder 4, 5.
  • the upper half of the printing unit shown has a dampening unit 6 for moistening the printing plate arranged on the plate cylinder 4.
  • the inking unit 7, which is also shown, consists of an ink fountain 8, an ink fountain roller 9, a plurality of inking or friction rollers and the inking rollers 10, 11 and 12.
  • both the inking rollers 10 to 12 and the dampening roller 13 are mounted so that they can be lifted off the plate cylinder 4.
  • the rubber and plate cylinders are also turned off from one another in a known manner, so that their lateral surfaces are no longer in contact.
  • FIG. 2 shows an oscillating inking roller, which can be the last roller 12 seen in the direction of rotation of the plate cylinder 4.
  • the inking roller has a roller jacket 14 which is provided with an elastic coating 15, e.g. made of rubber, is covered.
  • the roller jacket 14 is rotatably and axially displaceably supported by needle bearings 16 with extended inner bushes 17 on a roller shaft 19 arranged in a rotationally fixed manner in bearings 18.
  • the bearings 18 are provided in the exemplary embodiment shown between the side frames 20 and 21 and serve to lift the inking roller 12 when the print is turned off.
  • bushings 22 are fastened within the roller shell 14 via clamping rings 23, which serve as a stop for the bush 24, which are arranged in the roller shell 14 via ball bearings 25.
  • compression springs 26 are provided between the bushes 22 and 24, which are dimensioned in their compressive force so that the inking roller 12 during the lateral stroke of the co-operating friction roller 27 follows this by the amount a, and in this position as long remains until the friction roller undergoes a reversal of movement in its respective dead center.
  • the respective compression spring 26 already initiates the return movement of the inking roller 12 into its starting position. The same is then carried to the other side until the bushes 24, 26 meet.
  • the inking roller 12 is therefore an asynchronous lateral movement to the rubbing roller 27, which prevents stenciling without an additional drive.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)

Claims (2)

1 - Dispositif d'encrage pour machines à imprimer, en particulier pour machines à imprimer offset, dans lequel l'encre est amenée, dans une quantité dosée, à partir d'un réservoir d'encre (8), aux rouleaux d'encrage du dispositif d'encrage (7), au moyen desquels le film d'encre peut être déposé sur le cylindre porte-plaque, par l'intermédiaire de plusieurs rouleaux toucheurs d'encrage (10, 11, 12) appuyés chacun contre un rouleau de distribution (13, 27) et qui peuvent être écartés du cylindre porte-plaque (4), dispositif dans lequel le dernier rouleau toucheur d'encrage (12), considéré dans le sens de la rotation du cylindre porte-plaque (4) est constitué par un rouleau baladeur, caractérisé en ce que la paroi latérale (14) du rouleau toucheur d'encrage (12) baladeur est montée rotative et mobile en translation axiale, sans entrainement de mouvement baladeur particulier et sous l'effet du mouvement de translation axiale du rouleau de distribution (27), sur un axe de rouleau (19) monté fixe axialement et en rotation dans des paliers (18), en ce que la course axiale est limitée des deux côtés, par deux douilles (22, 24) de chaque côté, et en ce qu'il est prévu un ressort de compression (26) entre les deux douilles (22, 24) de chaque côté du rouleau.
2 - Dispositif d'encrage selon la revendication 1, caractérisé en ce que la paroi latérale (14) du rouleau est montée sur l'axe (19) du rouleau par l'intermédiaire de roulements à aiguilles (16) munis de bagues intérieures prolongées (17), et la douille (24) disposée en position intérieure et appuyée contre un ressort de compression (26) est montée rotative dans la paroi latérale (14) du tambour par l'intermédiaire d'un roulement à billes (25).
EP84111165A 1983-10-19 1984-09-19 Dispositif d'encrage pour machines à imprimer Expired EP0143240B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84111165T ATE25355T1 (de) 1983-10-19 1984-09-19 Farbwerk fuer druckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838330123U DE8330123U1 (de) 1983-10-19 1983-10-19 Farbwerk fuer druckmaschinen
DE8330123U 1983-10-19

Publications (2)

Publication Number Publication Date
EP0143240A1 EP0143240A1 (fr) 1985-06-05
EP0143240B1 true EP0143240B1 (fr) 1987-02-04

Family

ID=6758114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111165A Expired EP0143240B1 (fr) 1983-10-19 1984-09-19 Dispositif d'encrage pour machines à imprimer

Country Status (7)

Country Link
US (1) US4546701A (fr)
EP (1) EP0143240B1 (fr)
JP (1) JPS60101049A (fr)
AT (1) ATE25355T1 (fr)
AU (1) AU567368B2 (fr)
CA (1) CA1222655A (fr)
DE (2) DE8330123U1 (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4493257A (en) * 1983-10-25 1985-01-15 Harris Graphics Corporation Inker for a printing press
US4718344A (en) * 1986-05-02 1988-01-12 Lemaster Milton R Apparatus and method for oscillating the form rollers in a printing press
US4777877A (en) * 1986-05-02 1988-10-18 Airsystems Inc. Apparatus and method for oscillating the form rollers in a printing press
US4887533A (en) * 1986-05-02 1989-12-19 Airsystems Inc. Apparatus and method for oscillating the form rollers in a printing press
JPH0818428B2 (ja) * 1986-06-30 1996-02-28 株式会社小森コーポレーション 印刷機のインキ装置
DE8626762U1 (de) * 1986-10-09 1986-11-20 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Feuchtwerk für Offsetdruckmaschinen
DE3638826A1 (de) * 1986-11-13 1988-05-26 Roland Man Druckmasch Lagerung fuer changierende auftragwalzen von druckmaschinen
US4785514A (en) * 1987-04-27 1988-11-22 Hh&L Co. Oscillating roller mounted on a fixed shaft
US4796530A (en) * 1987-06-01 1989-01-10 Pathfinder Graphic Associates Inc. Oscillating roll for printing presses
US4739703A (en) * 1987-10-28 1988-04-26 Komori Printing Machinery Co., Ltd. Inking apparatus for printing press with vibrating form roller
DE3773677D1 (fr) * 1987-10-30 1991-11-14 Komori Corp., Tokio/Tokyo, Jp
DE3800658A1 (de) * 1988-01-13 1989-07-27 Kotterer Grafotec Vorrichtung zum auftragen von farbe und/oder feuchtmittel auf eine druckform
CA1330636C (fr) * 1988-10-07 1994-07-12 James R. Kemp Machine a imprimer a balladeur et mode d'exploitation connexe
US4901640A (en) * 1988-10-19 1990-02-20 Rockwell International Corporation Oscillating form roller dampener
DE3931291C1 (fr) * 1989-09-20 1991-04-18 Koenig & Bauer Ag, 8700 Wuerzburg, De
DE3934070A1 (de) * 1989-10-12 1991-04-25 Miller Johannisberg Druckmasch Changierende auftragwalze eines farbwerks einer druckmaschine
DE4112158C2 (de) * 1991-04-13 1994-11-10 Roland Man Druckmasch Vorrichtung zur Verstellung des axialen Hubes einer Walze einer Druckmaschine
US5351614A (en) * 1991-11-05 1994-10-04 Rockwell International Corporation Self-oscillating roller assembly and method
DE10044860B4 (de) * 1999-09-29 2008-04-30 Heidelberger Druckmaschinen Ag Antriebsvorrichtung für Druckmaschinen
DE10106528A1 (de) 2000-03-10 2001-09-13 Heidelberger Druckmasch Ag Walze für einen mit Walzen bestückten Walzenstuhl einer Rotationsdruckmaschine
US6672206B2 (en) * 2002-01-04 2004-01-06 Graphic Specialists, Inc. Form roller for printing press
JP2007309508A (ja) 2006-04-20 2007-11-29 Kinyosha Co Ltd 揺動ローラー、転がり軸受、ローラーの揺動方法
US20090101033A1 (en) * 2007-10-23 2009-04-23 Byer Kevin T Oscillating ink form roller
FR2940177B1 (fr) * 2008-12-24 2013-01-11 Goss Int Montataire Sa Ensemble de support et unite d'encrage ou de mouillage correspondante
DE102010042698B4 (de) * 2010-10-20 2014-12-18 Koenig & Bauer Aktiengesellschaft Anordnung von in einer Druckmaschine achsparallel zueinander angeordneten Walzen
WO2013113616A2 (fr) * 2012-02-01 2013-08-08 Crown Packaging Technology, Inc. Décoration de récipient
US20200055304A1 (en) * 2018-08-16 2020-02-20 Pacesetter Graphic Service Corporation Ink transfer roller with a removable hollow-core elastomer roller body on a reusable hanger shaft
US11383509B2 (en) 2018-11-09 2022-07-12 Ball Corporation Metering roller for an ink station assembly of a decorator and a method of decorating a container with the decorator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1027384A (en) * 1905-05-26 1912-05-21 Warren L Green Printing-machine.
US1533062A (en) * 1921-02-07 1925-04-07 Arthur J Daane Ink-distributing roller
US3625148A (en) * 1969-08-25 1971-12-07 Adamovske Strojirny Np Device for axially moving fluid-distributing rollers
DE2931141C3 (de) * 1979-08-01 1982-01-28 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum axialen Hin- ud Herbewegen einer Reibwalze
DE8015906U1 (de) * 1980-06-14 1980-09-11 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum axialen hin- und herbewegen einer farbwerkswalze an rotationsdruckmaschinen
DE3034644C2 (de) * 1980-09-13 1982-10-07 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk mit changierenden Farbauftragswalzen

Also Published As

Publication number Publication date
JPS60101049A (ja) 1985-06-05
CA1222655A (fr) 1987-06-09
ATE25355T1 (de) 1987-02-15
EP0143240A1 (fr) 1985-06-05
US4546701A (en) 1985-10-15
AU3323884A (en) 1985-04-26
AU567368B2 (en) 1987-11-19
DE8330123U1 (de) 1984-01-12
JPH0434500B2 (fr) 1992-06-08
DE3462316D1 (en) 1987-03-12

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